"math 2568 autumn 2018 homework 2 problem! let a-b find all matrices b = satisfying the equation a * b b+ a as с follows:
i) use the equality a * b-b * a to write down a 4 x 4 systern of equations in the unknowns a, b,c, d
ii) solve the system of equations
iii) using whatever method you prefer. express your answer as a parametrized set of solutions, indicating explicitly what variables are being used for the parametrization."